16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 26 5/8" width X 24 5/8" height

4" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

+ Product Details Size - 10" X 10" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 14" OR 14" x 22" duct opening (measured at the opening)

Actual Filter Size – 31 3/4"w x 29 3/4" x 1"

16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 26 5 8" width X 24 5 8" height 4" X 12" Is The Size For The Duct Opening (floor vent hole) Measurement Only